| Gene | Description | Domains |
|---|---|---|
| Tadh_P24020 | ubiquitin like modifier activating enzyme 2 | ThiF, UAE_UbL |
| Tadh_P25768 | ubiquitin like modifier activating enzyme 1 | E1_4HB, E1_FCCH, E1_UFD, ThiF, UBA_e1_thiolCys |
| Tadh_P25845 | ubiquitin like modifier activating enzyme 3 | E2_bind, ThiF |
| Tadh_P27487 | NEDD8 activating enzyme E1 subunit 1 | ThiF |
| Tadh_P50356 | molybdenum cofactor synthesis 3 | Rhodanese, ThiF |
| Tadh_P51819 | SUMO1 activating enzyme subunit 1 | ThiF |
| Tadh_P54436 | ubiquitin like modifier activating enzyme 6 | E1_4HB, E1_FCCH, E1_UFD, ThiF, UBA_e1_thiolCys |
| Tadh_P54467 | ubiquitin like modifier activating enzyme 5 | ThiF |
| Tadh_P56400 | autophagy related 7 | ATG7_N, ThiF |